<?php
/**
 * Smarty shared plugin
 *
 * @package Smarty
 * @subpackage PluginsShared
 */

if (version_compare(PHP_VERSION, '5.2.3', '>=')) {
	/**
	 * escape_special_chars common function
	 *
	 * Function: smarty_function_escape_special_chars<br>
	 * Purpose:  used by other smarty functions to escape
	 *           special chars except for already escaped ones
	 *
	 * @author   Monte Ohrt <monte at ohrt dot com>
	 * @param string $string text that should by escaped
	 * @return string
	 */
	function smarty_function_escape_special_chars($string)
	{
		if (!is_array($string)) {
			$string = htmlspecialchars($string, ENT_COMPAT, Smarty::$_CHARSET, false);
		}
		return $string;
	}
} else {
	/**
	 * escape_special_chars common function
	 *
	 * Function: smarty_function_escape_special_chars<br>
	 * Purpose:  used by other smarty functions to escape
	 *           special chars except for already escaped ones
	 *
	 * @author   Monte Ohrt <monte at ohrt dot com>
	 * @param string $string text that should by escaped
	 * @return string
	 */
	function smarty_function_escape_special_chars($string)
	{
		if (!is_array($string)) {
			$string = preg_replace('!&(#?\w+);!', '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string);
			$string = htmlspecialchars($string);
			$string = str_replace(array('%%%SMARTY_START%%%', '%%%SMARTY_END%%%'), array('&', ';'), $string);
		}
		return $string;
	}
}

?>